F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
F02B75/00—Other engines
F02B75/28—Engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders
F02B75/30—Engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders with one working piston sliding inside another
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Engineering & Computer Science
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Chemical & Material Sciences
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Combustion & Propulsion
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Mechanical Engineering
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General Engineering & Computer Science
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Shafts, Cranks, Connecting Bars, And Related Bearings
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Procede et dispositif pour ameliorer le rendement d'un moteur a combustion interne par variation selective au taux de compression effectif selon le regime du moteur